diff --git a/bin/EhViewer.apk b/bin/EhViewer.apk
index 1af65d97d..65f7847b1 100644
Binary files a/bin/EhViewer.apk and b/bin/EhViewer.apk differ
diff --git a/bin/classes.dex b/bin/classes.dex
index 418bf3fee..49b38a792 100644
Binary files a/bin/classes.dex and b/bin/classes.dex differ
diff --git a/bin/resources.ap_ b/bin/resources.ap_
index e2af59e8f..603aa7314 100644
Binary files a/bin/resources.ap_ and b/bin/resources.ap_ differ
diff --git a/res/raw/change_log b/res/raw/change_log
index 7e6a1d948..9135cbd33 100644
--- a/res/raw/change_log
+++ b/res/raw/change_log
@@ -1,6 +1,8 @@
-Version 0.3.4 (2014-03-23)
+Version 0.3.4 (2014-03-28)
 * 完善用于显示预览图的控件
 * 显示漫画标签组名
+* 自动更新改为每日检查
+* 修正其他问题
 
 Version 0.3.3 (2014-03-23)
 * 测试自动更新
diff --git a/src/com/hippo/ehviewer/UpdateHelper.java b/src/com/hippo/ehviewer/UpdateHelper.java
index 33a70dabd..afed1c5f0 100644
--- a/src/com/hippo/ehviewer/UpdateHelper.java
+++ b/src/com/hippo/ehviewer/UpdateHelper.java
@@ -17,6 +17,7 @@ import com.hippo.ehviewer.dialog.DialogBuilder;
 import com.hippo.ehviewer.network.Downloader;
 import com.hippo.ehviewer.util.Config;
 import com.hippo.ehviewer.util.EhClient;
+import com.hippo.ehviewer.util.Util;
 import com.hippo.ehviewer.view.AlertButton;
 
 public class UpdateHelper {
@@ -29,10 +30,16 @@ public class UpdateHelper {
         mActivity = activity;
     }
     
+    public void autoCheckUpdate() {
+        if (Config.getUpdateDate() < Util.getDate())
+            checkUpdate();
+    }
+    
     public void checkUpdate() {
         EhClient.checkUpdate(new EhClient.OnCheckUpdateListener() {
             @Override
             public void onSuccess(String pageContext) {
+                Config.setUpdateDate();
                 String[] items = pageContext.split("\n");
                 if (items.length > 3) {
                     
diff --git a/src/com/hippo/ehviewer/activity/MangaListActivity.java b/src/com/hippo/ehviewer/activity/MangaListActivity.java
index df1caa922..8af9a1ad1 100644
--- a/src/com/hippo/ehviewer/activity/MangaListActivity.java
+++ b/src/com/hippo/ehviewer/activity/MangaListActivity.java
@@ -1409,7 +1409,7 @@ public class MangaListActivity extends Activity {
     }
     
     private void checkUpdate() {
-        new UpdateHelper(this).checkUpdate();
+        new UpdateHelper(this).autoCheckUpdate();
     }
     
     private void checkLogin(boolean force) {
diff --git a/src/com/hippo/ehviewer/util/Config.java b/src/com/hippo/ehviewer/util/Config.java
index 5ffa749c2..df7c8724e 100644
--- a/src/com/hippo/ehviewer/util/Config.java
+++ b/src/com/hippo/ehviewer/util/Config.java
@@ -1,218 +1,228 @@
-package com.hippo.ehviewer.util;
-
-import java.util.HashSet;
-import java.util.Set;
-
-import com.hippo.ehviewer.view.MangaImage;
-
-import android.app.Activity;
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.content.SharedPreferences.Editor;
-import android.content.pm.ActivityInfo;
-import android.os.Environment;
-import android.preference.PreferenceManager;
-
-public class Config {
-    private static final String TAG = "Config";
-    
-    private static final String KEY_ALLOWED = "allowed";
-    private static final String KEY_FIRST = "first_time";
-    private static final String KEY_LOGIN = "login";
-    private static final String KEY_IS_EXHENTAI = "is_exhentai";
-    
-    private static final String CP_CACHE = "preference_cp_cache";
-    private static final String CP_CACHE_DEFAULT = "25";
-    private static final String PAGE_CACHE = "preference_page_cache";
-    private static final String PAGE_CACHE_DEFAULT = "256";
-    private static final String AUTO_PAGE_CACHE = "preference_auto_page_cache";
-    private static final String PAGE_SCALING = "preference_page_scaling";
-    private static final String PAGE_SCALING_DEFAULT = "3";
-    private static final String SCREEN_ORI = "preference_screen_ori";
-    private static final String SCREEN_ORI_DEFAULT = "0";
-    private static final String DOWNLOAD_PATH = "preference_download_path";
-    private static final String DOWNLOAD_PATH_DEFAULT = Environment.getExternalStorageDirectory() + "/EhViewer/download/";
-    
-    private static boolean mInit = false;
-
-    private static Context mContext;
-    private static SharedPreferences mConfigPre;
-    
-    private static final String EMSG = "Please init Config first.";
-
-    /**
-     * Init Config
-     * 
-     * @param context Application context
-     */
-    public static void init(Context context) {
-        if (mInit)
-            return;
-        mInit = true;
-        
-        mContext = context;
-        mConfigPre = PreferenceManager.getDefaultSharedPreferences(mContext);
-        
-        // Init what in config
-        MangaImage.setMode(getPageScalingMode());
-    }
-    
-    /**
-     * Is init
-     * @return True if init
-     */
-    public static boolean isInit() {
-        return mInit;
-    }
-    
-    /**
-     * Get is it allowed to launch
-     * 
-     * @return True if allowed
-     */
-    public static boolean isAllowed() {
-        if (!mInit) {
-            throw new IllegalStateException(EMSG);
-        }
-        return mConfigPre.getBoolean(KEY_ALLOWED, false);
-    }
-    
-    /**
-     * Allowed the appliation to launch
-     */
-    public static void allowed() {
-        if (!mInit) {
-            throw new IllegalStateException(EMSG);
-        }
-        mConfigPre.edit().putBoolean(KEY_ALLOWED, true).apply();
-    }
-    
-    /**
-     * Check is it first time to launch the application
-     * 
-     * @return
-     */
-    public static boolean isFirstTime() {
-        if (!mInit) {
-            throw new IllegalStateException();
-        }
-        return mConfigPre.getBoolean(KEY_FIRST, true);
-    }
-
-    /**
-     * It is first time to launch the application
-     */
-    public static void firstTime() {
-        mConfigPre.edit().putBoolean(KEY_FIRST, false).apply();
-    }
-
-    /**
-     * Is login last time ?
-     * 
-     * @return
-     */
-    public static boolean isLogin() {
-        return mConfigPre.getBoolean(KEY_LOGIN, false);
-    }
-
-    public static void loginNow() {
-        mConfigPre.edit().putBoolean(KEY_LOGIN, true).apply();
-    }
-
-    public static void logoutNow() {
-        mConfigPre.edit().putBoolean(KEY_LOGIN, false).apply();
-    }
-    
-    public static String getDownloadPath() {
-        return mConfigPre.getString(DOWNLOAD_PATH, DOWNLOAD_PATH_DEFAULT);
-    }
-    
-    /**
-     * Get cover cache size in MB
-     * 
-     * @return
-     */
-    public static int getCoverDiskCacheSize() {
-        try {
-            return Integer.parseInt(mConfigPre.getString(CP_CACHE, CP_CACHE_DEFAULT));
-        } catch (Exception e) {
-            mConfigPre.edit().putString(CP_CACHE, CP_CACHE_DEFAULT).apply();
-            return 25;
-        }
-    }
-
-    /**
-     * Get page cache size in MB
-     * 
-     * @return
-     */
-    public static int getPageDiskCacheSize() {
-        if (!mInit) {
-            throw new IllegalStateException(EMSG);
-        }
-        try {
-            return Integer.parseInt(mConfigPre.getString(PAGE_CACHE, PAGE_CACHE_DEFAULT));
-        } catch (Exception e) {
-            mConfigPre.edit().putString(PAGE_CACHE, PAGE_CACHE_DEFAULT).apply();
-            return 256;
-        }
-    }
-
-    public static boolean isAutoPageCache() {
-        if (!mInit) {
-            throw new IllegalStateException(EMSG);
-        }
-        return mConfigPre.getBoolean(AUTO_PAGE_CACHE, false);
-    }
-
-    public static int getPageScalingMode() {
-        if (!mInit) {
-            throw new IllegalStateException(EMSG);
-        }
-        int pageScalingMode = 3;
-        try {
-            pageScalingMode = Integer.parseInt(mConfigPre.getString(
-                    PAGE_SCALING, PAGE_SCALING_DEFAULT));
-        } catch (Exception e) {
-            mConfigPre.edit().putString(PAGE_SCALING, PAGE_SCALING_DEFAULT)
-                    .apply();
-        }
-        return pageScalingMode;
-    }
-    
-    public static int getScreenOriMode() {
-        if (!mInit) {
-            throw new IllegalStateException(EMSG);
-        }
-        int screenOriMode = 0;
-        try {
-            screenOriMode = Integer.parseInt(mConfigPre.getString(
-                    SCREEN_ORI, SCREEN_ORI_DEFAULT));
-        } catch (Exception e) {
-            mConfigPre.edit().putString(SCREEN_ORI, SCREEN_ORI_DEFAULT)
-                    .apply();
-        }
-        return screenOriPre2Value(screenOriMode);
-    }
-    
-    public static int screenOriPre2Value(int screenOriModePre) {
-        switch (screenOriModePre) {
-        case 0:
-            return ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
-        case 1:
-            return ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
-        case 2:
-            return ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
-        default:
-            return ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
-        }
-    }
-    
-    public static boolean isExhentai() {
-        return mConfigPre.getBoolean(KEY_IS_EXHENTAI, false);
-    }
-    
-    public static void exhentai(boolean isExhentai) {
-        mConfigPre.edit().putBoolean(KEY_IS_EXHENTAI, isExhentai).apply();
-    }
-}
+package com.hippo.ehviewer.util;
+
+import com.hippo.ehviewer.view.MangaImage;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.pm.ActivityInfo;
+import android.os.Environment;
+import android.preference.PreferenceManager;
+
+public class Config {
+    @SuppressWarnings("unused")
+    private static final String TAG = "Config";
+    
+    private static final String KEY_ALLOWED = "allowed";
+    private static final String KEY_FIRST = "first_time";
+    private static final String KEY_LOGIN = "login";
+    private static final String KEY_IS_EXHENTAI = "is_exhentai";
+    private static final String KEY_UPDATE_DATE = "update_date";
+    
+    private static final String CP_CACHE = "preference_cp_cache";
+    private static final String CP_CACHE_DEFAULT = "25";
+    private static final String PAGE_CACHE = "preference_page_cache";
+    private static final String PAGE_CACHE_DEFAULT = "256";
+    private static final String AUTO_PAGE_CACHE = "preference_auto_page_cache";
+    private static final String PAGE_SCALING = "preference_page_scaling";
+    private static final String PAGE_SCALING_DEFAULT = "3";
+    private static final String SCREEN_ORI = "preference_screen_ori";
+    private static final String SCREEN_ORI_DEFAULT = "0";
+    private static final String DOWNLOAD_PATH = "preference_download_path";
+    private static final String DOWNLOAD_PATH_DEFAULT = Environment.getExternalStorageDirectory() + "/EhViewer/download/";
+    
+    private static boolean mInit = false;
+
+    private static Context mContext;
+    private static SharedPreferences mConfigPre;
+    
+    private static final String EMSG = "Please init Config first.";
+
+    /**
+     * Init Config
+     * 
+     * @param context Application context
+     */
+    public static void init(Context context) {
+        if (mInit)
+            return;
+        mInit = true;
+        
+        mContext = context;
+        mConfigPre = PreferenceManager.getDefaultSharedPreferences(mContext);
+        
+        // Init what in config
+        MangaImage.setMode(getPageScalingMode());
+    }
+    
+    /**
+     * Is init
+     * @return True if init
+     */
+    public static boolean isInit() {
+        return mInit;
+    }
+    
+    /**
+     * Get is it allowed to launch
+     * 
+     * @return True if allowed
+     */
+    public static boolean isAllowed() {
+        if (!mInit) {
+            throw new IllegalStateException(EMSG);
+        }
+        return mConfigPre.getBoolean(KEY_ALLOWED, false);
+    }
+    
+    /**
+     * Allowed the appliation to launch
+     */
+    public static void allowed() {
+        if (!mInit) {
+            throw new IllegalStateException(EMSG);
+        }
+        mConfigPre.edit().putBoolean(KEY_ALLOWED, true).apply();
+    }
+    
+    /**
+     * Check is it first time to launch the application
+     * 
+     * @return
+     */
+    public static boolean isFirstTime() {
+        if (!mInit) {
+            throw new IllegalStateException();
+        }
+        return mConfigPre.getBoolean(KEY_FIRST, true);
+    }
+
+    /**
+     * It is first time to launch the application
+     */
+    public static void firstTime() {
+        mConfigPre.edit().putBoolean(KEY_FIRST, false).apply();
+    }
+
+    /**
+     * Is login last time ?
+     * 
+     * @return
+     */
+    public static boolean isLogin() {
+        return mConfigPre.getBoolean(KEY_LOGIN, false);
+    }
+
+    public static void loginNow() {
+        mConfigPre.edit().putBoolean(KEY_LOGIN, true).apply();
+    }
+
+    public static void logoutNow() {
+        mConfigPre.edit().putBoolean(KEY_LOGIN, false).apply();
+    }
+    
+    public static String getDownloadPath() {
+        return mConfigPre.getString(DOWNLOAD_PATH, DOWNLOAD_PATH_DEFAULT);
+    }
+    
+    /**
+     * Get cover cache size in MB
+     * 
+     * @return
+     */
+    public static int getCoverDiskCacheSize() {
+        try {
+            return Integer.parseInt(mConfigPre.getString(CP_CACHE, CP_CACHE_DEFAULT));
+        } catch (Exception e) {
+            mConfigPre.edit().putString(CP_CACHE, CP_CACHE_DEFAULT).apply();
+            return 25;
+        }
+    }
+
+    /**
+     * Get page cache size in MB
+     * 
+     * @return
+     */
+    public static int getPageDiskCacheSize() {
+        if (!mInit) {
+            throw new IllegalStateException(EMSG);
+        }
+        try {
+            return Integer.parseInt(mConfigPre.getString(PAGE_CACHE, PAGE_CACHE_DEFAULT));
+        } catch (Exception e) {
+            mConfigPre.edit().putString(PAGE_CACHE, PAGE_CACHE_DEFAULT).apply();
+            return 256;
+        }
+    }
+
+    public static boolean isAutoPageCache() {
+        if (!mInit) {
+            throw new IllegalStateException(EMSG);
+        }
+        return mConfigPre.getBoolean(AUTO_PAGE_CACHE, false);
+    }
+
+    public static int getPageScalingMode() {
+        if (!mInit) {
+            throw new IllegalStateException(EMSG);
+        }
+        int pageScalingMode = 3;
+        try {
+            pageScalingMode = Integer.parseInt(mConfigPre.getString(
+                    PAGE_SCALING, PAGE_SCALING_DEFAULT));
+        } catch (Exception e) {
+            mConfigPre.edit().putString(PAGE_SCALING, PAGE_SCALING_DEFAULT)
+                    .apply();
+        }
+        return pageScalingMode;
+    }
+    
+    public static int getScreenOriMode() {
+        if (!mInit) {
+            throw new IllegalStateException(EMSG);
+        }
+        int screenOriMode = 0;
+        try {
+            screenOriMode = Integer.parseInt(mConfigPre.getString(
+                    SCREEN_ORI, SCREEN_ORI_DEFAULT));
+        } catch (Exception e) {
+            mConfigPre.edit().putString(SCREEN_ORI, SCREEN_ORI_DEFAULT)
+                    .apply();
+        }
+        return screenOriPre2Value(screenOriMode);
+    }
+    
+    public static int screenOriPre2Value(int screenOriModePre) {
+        switch (screenOriModePre) {
+        case 0:
+            return ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
+        case 1:
+            return ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
+        case 2:
+            return ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
+        default:
+            return ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
+        }
+    }
+    
+    public static boolean isExhentai() {
+        return mConfigPre.getBoolean(KEY_IS_EXHENTAI, false);
+    }
+    
+    public static void exhentai(boolean isExhentai) {
+        mConfigPre.edit().putBoolean(KEY_IS_EXHENTAI, isExhentai).apply();
+    }
+    
+    public static int getUpdateDate() {
+        return mConfigPre.getInt(KEY_UPDATE_DATE, 0);
+    }
+    
+    public static void setUpdateDate() {
+        setUpdateDate(Util.getDate());
+    }
+    
+    public static void setUpdateDate(int date) {
+        mConfigPre.edit().putInt(KEY_UPDATE_DATE, date).apply();
+    }
+    
+}
diff --git a/src/com/hippo/ehviewer/util/EhClient.java b/src/com/hippo/ehviewer/util/EhClient.java
index d0115913b..324a027ac 100644
--- a/src/com/hippo/ehviewer/util/EhClient.java
+++ b/src/com/hippo/ehviewer/util/EhClient.java
@@ -69,7 +69,8 @@ import android.util.Log;
 public class EhClient {
 
     private static final String TAG = "EhClient";
-    private static String userAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.76 Safari/537.36";
+    private static String defaultUserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.76 Safari/537.36";
+    private static String userAgent = System.getProperty("http.agent", defaultUserAgent);
     private static String HOST = "g.e-hentai.org";
     private static String API_URL = "http://g.e-hentai.org/api.php";
     private static String loginUrl = "http://forums.e-hentai.org/index.php?act=Login&CODE=01";
@@ -481,9 +482,6 @@ public class EhClient {
             conn.setConnectTimeout(TIMEOUT);
             conn.setReadTimeout(TIMEOUT);
             conn.connect();
-            
-            Log.d(TAG, "ResponseCode = " + conn.getResponseCode());
-            
             getStringHUC(conn, sb);
         } catch (MalformedURLException e) {
             errorMessageId = R.string.em_url_format_error;
diff --git a/src/com/hippo/ehviewer/util/Util.java b/src/com/hippo/ehviewer/util/Util.java
index f812d567d..337230fc1 100644
--- a/src/com/hippo/ehviewer/util/Util.java
+++ b/src/com/hippo/ehviewer/util/Util.java
@@ -9,7 +9,10 @@ import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.OutputStream;
 import java.net.HttpURLConnection;
+import java.text.SimpleDateFormat;
+import java.util.Date;
 import java.util.List;
+import java.util.Locale;
 import java.util.zip.GZIPInputStream;
 import java.util.zip.Inflater;
 import java.util.zip.InflaterInputStream;
@@ -110,7 +113,7 @@ public class Util {
             }
             sb.append(Integer.toHexString(v));
         }
-        return sb.toString().toUpperCase();
+        return sb.toString().toUpperCase(Locale.getDefault());
     }
 
     public static byte[] hexStringToByteArray(String s) {
@@ -184,4 +187,13 @@ public class Util {
           }
         }
       }
+    
+    @SuppressLint("SimpleDateFormat")
+    public static int getDate() {
+        int time = 0;
+        try {
+            time = Integer.parseInt(new SimpleDateFormat("yyyyMMdd").format(new Date()));
+        } catch (NumberFormatException e) {}
+        return time;
+    }
 }